JP3461533B2 - Vehicle air conditioning controller - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air-conditioning control apparatus for automatically controlling the air-conditioning of a vehicle throughout the year. 2. Description of the Related Art FIG. 6 is a diagram showing an arrangement in a vehicle of a conventional vehicle air-conditioning control device described in, for example, Japanese Patent Publication No. 59-46804. In the drawing, reference numeral 1 denotes a vehicle such as a railway vehicle. Reference numeral 2 denotes an air conditioner having a cooling device 2a mounted on the vehicle 1 and a heating device 2b mounted in the vehicle 1. Reference numeral 3 denotes an outside air temperature detector for detecting an outside air temperature, and reference numeral 4 denotes an air conditioning controller. , An input circuit 5 as shown in FIG.
An output circuit 6, a memory 7, and a central processing unit (hereinafter, referred to as a central processing unit)
8). The above memory 7 was set and the standard program to be shown Me 8 was programmed annual operating schedule of the air conditioner 2, the range of the outside temperature operation control of the air conditioner 2 is performed by the standard program 9 Is stored. Next, the operation will be described with reference to a flowchart shown in FIG. First, the outside air temperature detected by the outside air temperature sensor 3, the date and time are set and input to the CPU 8 via the input circuit 5 (step F8).
The CPU 8 reads the standard program shown in FIG. 8 and the outside temperature setting program shown in FIG. 9 stored in the memory 7 (step F9), obtains an operation schedule from the date and time, and determines an air conditioning mode (step F).
10). When it is determined that the cooling operation is performed, the input outside air temperature is compared with the upper limit value and the lower limit value of the read outside temperature setting program (steps F11 and F1).
2) If the outside air temperature is equal to or higher than the upper limit value, the cooling device 2a performs the strong cooling operation (step F15), and if the outside air temperature is equal to or lower than the lower limit value, the operation of the cooling device 2a is stopped (step F1).
4) If the outside air temperature is higher than the lower limit and lower than the upper limit, an operation command according to the standard program shown in FIG. 8 is output, and the cooling operation is performed according to the standard program (step F13). When it is determined that the heating operation is performed (step F10), the input outside air temperature is compared with the upper limit value and the lower limit value of the read outside temperature setting program (steps F16 and F17). If it is not less than the upper limit, the heating device 2b is stopped (step F2).
0) If the outside air temperature is equal to or lower than the lower limit value, the heating device 2b performs the strong heating operation (step F19). If the outside air temperature is higher than the lower limit value and lower than the upper limit value, the operation according to the standard program shown in FIG. The command is output, and the heating operation is performed according to the standard program (step F18). [0004] Since the conventional vehicle air-conditioning control device is configured as described above, the date and time determined by the operation schedule are set to the air-conditioning mode (cooling operation) determined by the operation schedule. Or heating operation). However, depending on the temperature environment in the vehicle, for example, it may be better to perform the heating operation despite the cooling operation according to the operation schedule, and even if the heating operation is performed according to the operation schedule. In some cases, it is better to perform the cooling operation. Such a phenomenon particularly occurs when the weather becomes out of the average weather data or when the riding rate deviates from the expected riding rate when the driving schedule is set, and the air-conditioning mode in a sufficiently satisfactory air conditioning mode is generated. I cannot make a selection. In addition, there is a problem that a proper air conditioning cannot be performed in a Shinkansen vehicle or the like in which fresh air is taken in by a ventilation device having a heating function of heating fresh outside air and sending it into the vehicle. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is suitable for air conditioning even if the weather deviates from the average weather data or the departure rate deviates from the expected departure rate. It is an object of the present invention to provide a vehicle air conditioning control device in which a mode is automatically selected and comfortable air conditioning is obtained. A vehicle air-conditioning control device according to the present invention has a cooling operation region set in correspondence with a month and a day.
By comparing the boundary temperature and the vehicle inside temperature Ru switching the air-conditioning mode of the heating operation area to determine whether the heating operation cooling operation and,
Hand month and criteria temperature set corresponding to the day conditioning mode of the cooling operation or heating operation is the judgment as the target value
It is obtained to perform the luck rolling. [0007] [act] and the air conditioning reference temperature automotive air conditioner control apparatus as set according to date with air conditioning mode based on the air conditioning mode switching Ru boundary temperature and the vehicle in the temperature set according to the date in the present invention is automatically , And the air conditioning in the vehicle is comfortably controlled irrespective of weather conditions and the number of passengers. FIG. 1 is a block diagram showing a vehicle air-conditioning controller according to an embodiment of the present invention, FIG. 2 is a block diagram showing a circuit configuration of the air-conditioning controller shown in FIG. 1, and FIG. FIG. 8 is a diagram showing the arrangement of the vehicle air-conditioning control device shown in FIG. 1 in a vehicle. In these drawings, the same reference numerals as those in FIGS. Reference numeral 9 denotes an air conditioning controller, which includes an input circuit 10, an output circuit 11,
It comprises a memory 12 and a CPU (Central Processing Unit) 13. Fig. 4 shows the date, cooling operation area and heating.
Is a diagram showing the relationship between the boundary temperatures for switching the air conditioning mode of the operating region, in FIG., A is the air-conditioning mode switching Ru boundary temperature of the heating operation and cooling operation set by month and day
In this example, between December and March, the temperature inside the vehicle is T2 (for example, 22.5 ° C.), and the heating operation mode and the cooling operation mode are switched from April to June. Is a straight line connecting the temperatures of T2 and T1 (for example, 24.5 ° C.), the temperature of T1 from July to September 15, and the straight line connecting the temperatures of T1 and T2 from September 15 to November. The heating operation mode and the cooling operation mode are switched. A portion above the boundary temperature A is a cooling operation region B, a portion below the boundary temperature A is a heating operation region C, B1 is a cooling reference temperature, and is a predetermined temperature (for example, 1.5 ° C.) above the boundary temperature A.
Only set high. C1 is a heating reference temperature,
It is set lower than the boundary temperature A by a predetermined temperature (for example, 1.5 ° C.). The memory 12 stores the boundary temperature A
, A cooling reference temperature B 1 and a heating reference temperature C 1 . 14 is a vehicle temperature detector for detecting the temperature inside the vehicle 1, 15 is a clock device for outputting month and day signals, 16 is a cooling device control contactor, 17 is a heating device control contactor, 1
Reference numeral 8 denotes a main power supply line for supplying power to the cooling device 2a and the heating device 2b, and 19 denotes a control power supply line for supplying power to the air conditioning controller 9. Next, the operation will be described with reference to the flowchart shown in FIG. C via the input circuit 10
When an operation command is input to the PU 13, the CPU 13 reads the month and day signals at the time of input of the operation command from the clock device 15 via the input circuit 10 (step F1). Next, read the boundary temperature in the month read the from the set air conditioning mode switching temperature by month and day indicated in Figure 4, which is stored in the memory 12, for example, the boundary temperature if July 1 It becomes T1 (step F2). Next, the measurement timing of the temperature inside the vehicle is determined (step 3), and the temperature inside the vehicle at the time of startup and every predetermined time (for example, 4 seconds) after startup is detected by the temperature detector 14 inside the vehicle (step F4). Next, the detected temperature inside the vehicle is compared with the read air-conditioning mode switching temperature T1. When “ boundary temperature T1 ≧ temperature inside the vehicle”, the heating operation is selected, and The heating reference temperature t on (July 1) is read, and a heating operation command based on the heating reference temperature t2 is output to the heating device 2b (step F7). The heating operation command sets the heating reference temperature of the heating device 2b to t2, closes the heating device control contactor 17, supplies power to the heating device 2b, and supplies the power to the heating device 2b.
Starts the heating operation with the heating reference temperature t2 as the target value, and controls the air conditioning so that the temperature inside the vehicle 1 becomes the heating reference temperature t2. Further, when “ boundary temperature T1 <vehicle temperature”, the cooling operation is selected, and the date (July 1) is stored in the memory 12.
Is read, and a cooling operation command based on the cooling reference temperature t1 is output to the cooling device 2a (step F6). By this cooling operation command, the cooling reference temperature of the cooling device 2a is set to t1, and the cooling device control contactor 16 is closed to supply power to the cooling device 2a, so that the cooling device 2a sets the cooling reference temperature t1 to the target value. Cooling operation is started, and the temperature in the vehicle 1 becomes the cooling reference temperature t.
The air conditioning is controlled so as to be 1. According to the present invention as described above, according to the present invention, by comparing the boundary temperature set according to the temperature and the month and day vehicle cold
The air-conditioning mode of the room operation or the heating operation is determined, and the air-conditioning reference temperature set with a predetermined width according to the month and day is set as the target.
The system is configured to automatically select the cooling operation or the heating operation , so that it is not affected by weather conditions or the number of passengers.
It is also possible to perform air- conditioning control in which excessive cooling or excessive heating is avoided .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram showing a vehicle air-conditioning control device according to an embodiment of the present invention. FIG. 2 is a block diagram showing a circuit configuration of the air conditioning controller shown in FIG. FIG. 3 is a diagram showing an arrangement in a vehicle of the vehicle air conditioning control device shown in FIG. 3; FIG. 4 is a diagram showing a relationship between a date and an air conditioning mode switching temperature (a boundary temperature between a cooling operation and a heating operation). FIG. 5 is a flowchart showing an operation of the vehicle air conditioning control device shown in FIG. 1; FIG. 6 is a diagram showing an arrangement in a vehicle of a conventional vehicle air conditioning control device. FIG. 7 is a block diagram showing a circuit configuration of the air conditioning controller shown in FIG. FIG. 8 is a diagram showing a standard program. FIG. 9 is a diagram showing a vehicle outside temperature setting program. FIG. 10 is a flowchart showing the operation of the vehicle air conditioning control device shown in FIG. [Description of Signs] 2 Air conditioner 2a Cooling device 2b Heating device 9 Air conditioning controller 14 In-vehicle temperature detector 15 Clock device

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B60H 1/00-3/06

Claims (1)

(57) [Claim 1] An in-vehicle temperature detector for detecting an in-vehicle temperature controlled by a cooling capacity generating device and a heating capacity generating device, and cooling set in advance according to a month and a day. operation
A cooling reference temperature previously set higher than the boundary temperature by a predetermined temperature in accordance with a boundary temperature for switching between the region and the heating operation region and a month and a day, and a cooling temperature lower than the boundary temperature by a predetermined temperature.
A memory for storing a set heating reference temperature, and comparing the detected temperature detected by the in-vehicle temperature detector with the boundary temperature stored in the memory at the temperature detection date to perform a cooling operation or a heating operation. When the cooling operation is determined, the cooling reference temperature at the temperature detection date is obtained from the memory when the cooling operation is determined, and an operation command based on the cooling reference temperature is output to the cooling capacity generator. A control unit for obtaining a heating reference temperature at the temperature detection date from a memory, and outputting an operation command based on the heating reference temperature to the heating capacity generating device.